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Caravel Forum : Other Boards : Anything : Something (Mechanically) Interesting (If you like maths à la 1919 take a look)
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BlueFlower
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icon Something (Mechanically) Interesting (+1)  
Below is a photo of one of the most advanced calculators from the long-ago land of 1919—The Monroe Model G "Calculating machine."
The big crank at the centre-right adds by moving forward, subtracts by pulling back. The image shows 55,555^2, which is 3,086,358,025.
Click here to view the secret text


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[Last edited by BlueFlower at 04-12-2020 06:06 AM]
04-12-2020 at 06:06 AM
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Caravel Forum : Other Boards : Anything : Something (Mechanically) Interesting (If you like maths à la 1919 take a look)
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